Universal rolling-mill.



PATENTED MAR. 12, 1907. V.k GHARTENER.

UNIVERSAL ROLLING MILL.

APPMGATION FILED 0012.28.1903.

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NQ. 846,825. PAIBNTED MAR. I2, 19o?.

V. CHARTENER.

UNIVERSAL ROLLING MILL.

APPLICATION FILED 00T.2s. 190s.

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. @y i Mw No. 846,825. v PATRNTRD MAR. 12, 1907.

v. GHARTRNRR. UNIVERSAL ROLLING MILL.

APPLICATION FILED 00T.28. 1903.

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No. 846,825. IuITLNILD` MAR. I2, 1907.

V. GHAIITLNLR. UNIVERSAL ROLLING MILL.

APPLICATION FILED OOT.28. 1903.

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iNo. 846,825. PATENTED MAR. 12,' 1907. V. GHARTENER.

UNIVERSAL ROLLING MILL.

APPLICATION FILED OCT. 2B. 1903.

5 SHEETS-SHEET 5.

1.9 ZZ B tional element of considerable expense and l ployment of the intermediate or third roll.

- invention, the horizontal rolls be' UNITED STATES PATENT oEEicE.

. `UNIVERS/in. ROLLING-MILL.

Specification of Letters Patent.

rammed March 12,1907.

Application filed October 28,1903' Serial No. 178.952.

To @ZZ whom t may concern.'

Beit known that I, VICTOR CHAETENER, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have inventedor discovered new and useful I m rovements in Universal Rolling-Mills, of W 'ch the following is a specification'.

My, invention relates to universal mills.`

In universal mills it is common to drive the verticalv rolls by means of bevel gear-wheels on horizontal l shafts With bevel gear-wheels on the tops of the vertical rolls it is found in practice that the wheels must be so large that they will not permit the rolls to approach each other closel as small wheels are subject to frequent brealir-` age. In some instances in order to obviate this difficulty a roll has 'been inserted between the two rolls so geared, the intermediate roll being frictionally driven from one of the geared rolls. This introduces anaddicomplication. In other cases the gearing for one of the rolls has been placed below that roll; but this arrangement has not been satisfactory, as the earingbecomes clogged and cut by scale am? is not easy of access. i

It is among the objects of my invention to provide a rolling-mill whose vertical rolls may be positively driven without the use of bevel-gearing thereon and without the em- Another object thereof is to provide a universal mill Whose rolls, both vertical and horizontal, may be readily removed with a minimum loss of time. l

Refe to the drawings, Figure 1 is an end view or a roll' -mill which includes m omitte Fi 2, a vertical transverse section of the mil, taken through the bearings of a pair of vertical rolls on opposite sides of the horizontal rolls, the vertical rolls and one corner of the housing 2 being shown in elevation; Fig. 3, a longitudinal section of the mill, taken on the line 3 3 of Fig. 1, parts be' shown in elevation; Fig. 4, a view half inlglan and half in horizontal section, the section being taken on the line 4 4 of Fig. 3 and the horizontal rolls being'omittedj Flg. 5, a view partly in plan and partly in horizontal section, the section being taken on line 5 5 of Fig. 3; Fi 6, atop plan view of one of the vertical rol s; Fig. 7, a vertical section of one of the vertical rolls, l

mounted end standards or housings .2 and 3.

Mounted centrally in the housings are the two horizontal rolls 4, one'above the other. On each side of said rollsA are a pair of vertical rolls 5, Whose necks are mounted in the horizontal arms 6 of the frames or carriers 7. The upper arms 6 are provided at their ends with tongues 8, which fit in the horizontal rooves 9 in thevup er` iding and supporting bars 10 and 11 or t e rolls 5. The bars 10 and 11 are supported on the lugs or shoulders 12 on pair of rolls 5 being guided by one pair of bars 10 arddlam.1 the other pair of lfolls 5 e`k i e t e remain' lng' air o b'ars lOliiligidgll-l. Thi; two barslO an 11 of each pair are held tie, or cross piece 13, .winch is bridged across and bolted to thebars and has a tenon-andin ortise connection'14 therewith, as shown in F 2. )It has been the practice in many instances to lace a tie-piece directly between the gul e-bars; but. when this is done the rolls when constructed withthe body, necks, and

housings of practical proportions prevent the contact of the rolls or their close approach for rolling very thin material and prevent the pass of one roll beyond the transverse center oi the guide-bars. In F' 3 I show in dotted line the right-hand rol with portions to the left of the said center of the ide-bars and under the tie or A oke 13. T ese are distinct advantages w 'ch have not heretofore been recognized by any of the `highly-skilled inventors in the art of rolling-mllls'.

The lower arms 6 ofthe frame 7 are guided between the pairs of guiding and supporting bars 15 and 16 for the rolls 5, the bars resting on the lugs 17 on the inner faces of the housings 2 and 3. The arms 6 have shoulders 18, which rest on said bars.

The arms 6 constitute journal-boxes for the rolls 5 and are composed of the brass blocks 19 and the caps 20, secured to ether by bolts 21, as shown in Fig. 6. .The locks 19 have tenons or tongues 22, seated in correspondtaken on the line 7 7 of Fig... 6 Fig. 8, a sec-- the housings 2 and 3, one

' through the openings lyokes or ing inortises or grooves 23 in the body portion of the frames 7. The caps areh clamped in place on the bolts by means of the nuts 24.

The ends of the bars 11 and 16 overlap the housings 2 andl 3 and are secured thereto by the bolts 25, having the nuts 26.

When it is desired to remove the vertical rolls, the nuts 26 are unscrewed andv the cross-pieces 13, the bars 11 and 16, the nuts'24', and caps 20 are removed. The rolls 5 may -then be moved toward the interior of the machine to free the sides, of` the machine between the two standards or housings. The blocks 19 will remain in place by reason ot' bolts 21 and the' tongues 22 and grooves 23.

The rolls 4 may be removed endwise 27 in the housings 2 and 3.

The vertical rolls are each zontally when in use by means of a pair of screws 28, slidable in the nuts 29, fixed in the housings. The inner ends or the screws bear against the outer faces of the frames 7, and bolts 30, passing through the housings 2 and 3, connect the frames 31, whose ends rest pivotally on collars 32 on the outer ends of the screws. Each rod is surrounded by the spring 33, seated in the socket 34 in a yoke 31. A cap-piece 35 rests on the outer end. of each spring 33, which is compressed' by nuts 36, turned up against the outer `face of the cap 35, in order to keep each trame with the ends of the screws 28. As the ends of the screws 28 or their bearings on the fraines 7 wear the springs 33 will expand and automatically take up the slack or wear. The screws are moved lengthwise by means of geared nuts 37, splined thereon and provided with gear-wheels 38, which are connected by the intermediate gear-wheel 39. The upper wheels 38 mesh with the wheels 40, which are driven by the gear-wheels 41 on the shafts 42, rotated by any suitable means.

I make no claim herein to the roll-adjusting mechanism just described, as it forms no part of the subject-matter of the present invention.

Lying housings 2 and moved horibetween the upper ends of the 3 and supported thereon by the lus 4'3 is a frame 44, secured to the said housingszby the bolts 45. This frame ties the upper ends of said housings toglether and forms a housing for several gear-w eels presently to be described.

Supported in the housing 2 on each side of the opening 27 are two shafts 46 in the same vertical planes as the vertical rolls 5. These shafts extend through only one housin and have at their inner ends bevel gear-whee s 47, which intermesh with vertical hollow gearwheels 48, journaled in the frame 44 and I lie against or port the gear-wheels 47.

them from the l blocks 19, whence they may be taken out at 7 to the yokes l 7 in constant contact" near the inner face of one of the housings, as 2. The shaft 46 does not l extend across the whole space between the the space between the housings sufficiently lar to sup- By having the i shaft extending through one housing only l the space between the housings is left free for the removal upwardly of the mechanism thereto between and for facilitating aecess to the interior of the mechanism for repairs and other purposes. The gear-wheels 48 have thereon a set of spur gearJ-teeth 49, which meshwith corresponding teeth 5() on the hollow gear-wheel 51, the latter being journaled in the frame 44 and having its axis -vertical. The gear-wheels 48 and 51 are held in place g in the rame 44 as shown in Figs. 3 and '4, l where the bearings for the wheels are each in two parte each recessed to fit the neck or journal ot the wheel. One of the, parts 44 is secured to the other or main part of the l frame by the bolts 442. Handles 443 are providedfor the removable' parts of the bearings. l The interior of the gear-wheels 48 and 51 are provided with inwardly-projecting weari teeth cles, as shown on Fig. 4. Theorolls 5 Ahave a deep recess 53 extending from their tops l down into the body thereof, the bottom of l the recesses having gear-teeth 54 like the internal teeth in wheels 48 and 5l. l A vibrating or gear spindle 55 rests on the bottom of each recess 53 and extends up into a recess in the bottom of the wheel 48 or 51 which corresponds with and drives the roll. l Each spindle has its ends provided with gearteeth 56, which mesh with the teeth 52 and l 54. The tops of the rolls 5 and the bottoms l of the 'gears 48 and 51 are made flaring in i their interiors in order to allow the rolls 5 to move horizontally in their guides 10, 11, 15, l and 16 beneath their ,corresponding drivinwheels 48 and 51 while still intergeare The recesses in the wheels 48 and 51 are eX- l tended up through the tops thereof and are large enoughl to permitA the driving-spindles to be drawn up through or into them. The i teeth on the spindles are curved both longitudinally and transversely 1n order to allow the same torotate while inclined or connect.- ing members not in a vertical line. The upper endsu of the spindles have eyes 57, by which they may be pulled up through the extensions of the recesses in the wheels 48 land 51. l The bottoms of the wheels 48 and 51 are l sulliciently far above the tops of the vertical rolls so as not to interfere with the removal of the latter after the bars 12 and 16 have l been taken oil'. All that it necessary to do i to remove the vertical rolls laterally from the mill is to take oll'the bars 12 and 16 and ull the spindles up through the wheels 48 an 51 52, whose ends or faces are arcs o cirso that the spindles shall be clear of the rolls.

This easy removal of the vertical rolls cannot be accomplished with the usual rolling-mill, where the rolls are provided with bevel-gears meshing with bevel-gears on a horizontal shaft. In the latter case the bearings for the be vel-gears must be secured together, so that the bevel-gearing will remain in mesh during the laterali movement of the rolls. It is therefore in such case necessary to remove the said shaft in order to get the bevel-gearing out of mesh, since the rolls cannot be moved sidewise out or the mill with the said gearing intermeshed. This process is very slow, causing long delays .in all of the mill departments de )ending on the continuous action of the mil. be no delay Worth mentioning caused by the disconnection of the rolls and their immediate driving connections, as the spindles can be pulled out by an overhead crane or otherwise within a very few minutes.

The frame 44 is provided with eyes or loops 58, by which it may be lifted out ofthe machine after'the bolts 45 and the top clampin -nuts 59 have been removed, so that the 'ro ls 4 or 5 and the interior of the machine ma become accessible for any purpose. Be ore the frame 44 can be lifted the sections 44 of the bearin s of the wheels 48 and 5].

and the said Whee s must be removed. This is an easy matter. The said sections will be readily removed by the handles 443 after the nuts have been screwed off from the bolts l442.

I do not desire to be restricted to the precise'details of my invention shown and described, but such protection on all such modifications as may fairly come within the scope thereof.

I would not be restricted to a construction which requires the driving-shaft to eX- tend through one housing only except where this is specifically claimed, as the other features of my invention may be retained while the wheels 48 and 51 are driven otherwise.

Having described my invention, what I claim ish f 1. In a rolling-mill, a pair of housings, a pair of vertical rolls, a driving-shaft extending through and terminating near one of the By my mill there needA housin s, stationary roll-driving wheels o erative y connected to said shaft and ro ls and located above the rolls, and meansjffor adjusting the rolls transversely of their axes.

2. In a rolling-mill, a pair of housings, a pair of vertical rolls, a driving-shaft extending through and terminating near one of the housin s, stationary roll-driving wheels operative y connected to said shaft and located above the' rolls, means for adjusting the rolls transversely of their axes, and wabbler connections between the rolls and the Wheels.4

3. AIn a rolling-mill, a pair of vertical rolls adjustable transversely of their axes, a pair of driving-wheels located above the rolls and driving connections between the rolls and wheels, one of the parts connected by the drivin connections having an opening throug which the latter may be withdrawn.

4. ln arollinU-mill, aroll having an opening provided with gear-teeth, a driving-wheel havin an opening extending throu h it and provi ed with gear-teeth and a rol -drivin spindle seated in the openings in said roll and wheel and having teeth earing with the teeth in said roll and whee the opening in the wheelbeing sufficiently lar e to permit the withdrawal of tlie spindle t erethrough to disconnect the roll and wheel.

5. In a rolling-mill, a pair of housings, a set of vertical rolls journaled therein, means for driving the same readily detachable therefrom, and a removable frame carrying said drivingmeans and located above the rolls and between the housings.

6. In a rolling-mill, a housing, a pair of vertical rolls supported thereby, means for adjusting the rolls toward or away from each other, stationary gearing for driving said rolls, wabble connections between the rolls and the driving-gearing, vand a single frame removably secured to the mill-housing and serving as a housing for said gearing.

Signed at Pittsburg this 20th day of October, 1903.

VICTOR CHARTEN ER.

Witnesses F. N. BARBER, A. M. STEEN. 

